CN106911175A - A kind of quick-detachable DC charging system of tandem - Google Patents
A kind of quick-detachable DC charging system of tandem Download PDFInfo
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- CN106911175A CN106911175A CN201510973354.9A CN201510973354A CN106911175A CN 106911175 A CN106911175 A CN 106911175A CN 201510973354 A CN201510973354 A CN 201510973354A CN 106911175 A CN106911175 A CN 106911175A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 230000005669 field effect Effects 0.000 claims description 24
- 238000004132 cross linking Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 7
- 230000035882 stress Effects 0.000 description 6
- 230000032683 aging Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
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- H02J7/045—
Abstract
The invention discloses a kind of quick-detachable DC charging system of tandem, it is composed in series by the parallel connection of multiple charging module inputs and output end, charging module point two-layer configuration, prime realizes ac-dc conversion for AC/DC modules, rear class realizes recharge logic and control for DC/DC modules, AC/DC modules use three phase full bridge controlled rectification, APFC can be completed while realizing rectifier boost function, reduce Harmonics of Input, input power factor is improved, DC/DC modules are using input parallel connection and output end cascaded structure.The present invention has the advantages that input power factor high, efficiency high, reliability are high, easy to maintenance, does not influence system to work after single module failure, and directly malfunctioning module is changed in plug during maintenance.
Description
Technical field
The invention belongs to electric motor car charging technique field, more particularly to a kind of quick-detachable DC charging system of tandem.
Background technology
With the fast development of electric automobile, the demand as the charging station of electric automobile " gas station " is also increasing.Charging station is generally made up of multiple charging piles, and charging pile belongs to power electronic equipment, the nonlinear characteristic of power electronic equipment can produce the current component that many frequencies are supply frequency integral multiples, that is harmonic current components, so as to pollute AC network and bring a series of harm, additional harmonic loss is such as produced, the efficiency of generating, transmission of electricity and other three-phase alternating current net electrical equipments is reduced；Make the apparatus overheats such as transformer, cable, cause insulation ag(e)ing, lifetime；In addition, can also cause the misoperation of AC network protective relaying device or produce electromagnetic interference influence its normal work.Therefore, the important indicator that harmonic wave, the power factor of raising power electronic equipment are AC network electrical equipments is effectively suppressed.
Additionally, with electric automobile increasing number, charge requirement increases, charging pile is in running order for a long time, and this speeds up the aging of electronic component, reduces product reliability, increases charging risk.
The content of the invention
The existing problem for more than, the present invention provides a kind of quick-detachable DC charging system of tandem, charging module and charging module internal DC/DC modules are in parallel using input, the structure of output end series connection, the voltage stress and current stress that can reduce component in module are adopted the structure, delays component aging, increase charging pile reliability.Charging module and DC/DC module installation forms use plug-in, single（It is several）During individual module failure, fault-signal is sent to host computer, but due to the presence of output continued flow switch pipe (diode), the whole machine normal work of charging pile is not influenceed, malfunctioning module need to only replaced with normal module during maintenance.
Technical program of the present invention lies in：
The present invention provides a kind of quick-detachable DC charging system of tandem, it is composed in series by the parallel connection of multiple charging module inputs and output end, the charging module is made up of AC/DC modules and DC/DC modules, the AC/DC modules use three phase full bridge controlled rectification, realize ac-dc conversion, APFC can be completed while realizing rectifier boost function, reduce Harmonics of Input, improve input power factor, the DC/DC modules realize recharge logic and control using input parallel connection and output end cascaded structure.
Further, the AC/DC modules are the three-phase bridge rectification circuit of P-channel type insulating gate type field effect tube Q1, P-channel type insulating gate type field effect tube Q2, P-channel type insulating gate type field effect tube Q3, P-channel type insulating gate type field effect tube Q4, P-channel type insulating gate type field effect tube Q5 and P-channel type insulating gate type field effect tube Q6 composition.
Further, the DC/DC modules are the Buck crosslinking circuit groups of P-channel type insulating gate type field effect tube Q11, P-channel type insulating gate type field effect tube Q1N, air-core inductance L1, air-core inductance LN, electric capacity C1, electric capacity CN, diode D1 and diode DN composition.
Further,.
As a result of above-mentioned technology, be allowed to specific positive beneficial effect compared with prior art is the present invention：
1、
Charging module of the present invention and charging module internal DC/DC modules are in parallel using input, the structure of output end series connection, adopt the structure the voltage stress and current stress that can reduce component in module, delay component aging, increase charging pile reliability.
2、
Charging module of the present invention and DC/DC module installation forms use plug-in, single（It is several）During individual module failure, fault-signal is sent to host computer, but due to the presence of output continued flow switch pipe (diode), the whole machine normal work of charging pile is not influenceed, malfunctioning module need to only replaced with normal module during maintenance.
3、
Present invention dismounting is quick, convenient, is easy to the maintenance of charging system,.
4、
Simple structure of the present invention, it is safe and reliable, with good market prospects.
5、
Good product performance of the present invention, long service life.
Brief description of the drawings
Fig. 1 is the overall structure connection diagram of structure of the present invention；
Fig. 2 is the specific schematic diagram of charging module of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include but is not limited to the following example.
Embodiment：To achieve these goals, the technical solution adopted by the present invention is as follows：
As shown in figure 1, the present invention provides a kind of quick-detachable DC charging system of tandem, it is composed in series by the parallel connection of multiple charging module inputs and output end, charging module is made up of AC/DC modules and DC/DC modules,
AC/DC modules use three phase full bridge controlled rectification, realize ac-dc conversion, APFC can be completed while realizing rectifier boost function, reduce Harmonics of Input, improve input power factor, DC/DC modules realize recharge logic and control using input parallel connection and output end cascaded structure.
The present invention is further arranged to：AC/DC modules are the three-phase bridge rectification circuit of P-channel type insulating gate type field effect tube Q1, P-channel type insulating gate type field effect tube Q2, P-channel type insulating gate type field effect tube Q3, P-channel type insulating gate type field effect tube Q4, P-channel type insulating gate type field effect tube Q5 and P-channel type insulating gate type field effect tube Q6 composition.
The present invention is further arranged to：DC/DC modules are the Buck crosslinking circuit groups of P-channel type insulating gate type field effect tube Q11, P-channel type insulating gate type field effect tube Q1N, air-core inductance L1, air-core inductance LN, electric capacity C1, electric capacity CN, diode D1 and diode DN composition.
By using above-mentioned technical proposal, when the present invention is in normal operating conditions, m charging module input is in parallel, and output end is sequentially connected in series.Output voltage is evenly distributed in m × N number of Buck circuit output ends, and switching tube makes Buck circuits work successively using the working method that Q11-Q1N-Qm1-QmN-Q11-Q1N are sequentially turned on.When a certain charging module failure, for example rectification module 1 is opened a way, and due to the presence of D11 ~ D1N fly-wheel diodes, other rectification modules remain to normal work；When Buck faults, such as Q11 switching tubes open circuit, due to the presence of D11 fly-wheel diodes, other Buck circuits still being capable of normal work.Such working method can reduce component voltage stress, while current stress, improve charging pile reliability.Charging pile charging module and DC/DC module mounting arrangements use plug-in, and malfunctioning module is substituted with normal module during maintenance, therefore improve charging pile maintenanceability, substantially reduce charging pile maintenance time, reduces cost.
One embodiment of the present of invention has been described in detail above, but the content is only presently preferred embodiments of the present invention, it is impossible to it is considered as limiting practical range of the invention.All impartial changes made according to the present patent application scope and improvement etc., all should still belong within patent covering scope of the invention.
Claims (3)
1. the quick-detachable DC charging system of a kind of tandem, it is characterised in that：It is composed in series by the parallel connection of multiple charging module inputs and output end, the charging module is made up of AC/DC modules and DC/DC modules, the AC/DC modules use three phase full bridge controlled rectification, realize ac-dc conversion, APFC can be completed while realizing rectifier boost function, Harmonics of Input is reduced, input power factor is improved, the DC/DC modules realize recharge logic and control using input parallel connection and output end cascaded structure.
2. the quick-detachable DC charging system of a kind of tandem according to claim 1, it is characterised in that：The AC/DC modules are the three-phase bridge rectification circuit of P-channel type insulating gate type field effect tube Q1, P-channel type insulating gate type field effect tube Q2, P-channel type insulating gate type field effect tube Q3, P-channel type insulating gate type field effect tube Q4, P-channel type insulating gate type field effect tube Q5 and P-channel type insulating gate type field effect tube Q6 composition.
3. the quick-detachable DC charging system of a kind of tandem according to claim 1, it is characterised in that：The DC/DC modules are the Buck crosslinking circuit groups of P-channel type insulating gate type field effect tube Q11, P-channel type insulating gate type field effect tube Q1N, air-core inductance L1, air-core inductance LN, electric capacity C1, electric capacity CN, diode D1 and diode DN composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973354.9A CN106911175A (en) | 2015-12-23 | 2015-12-23 | A kind of quick-detachable DC charging system of tandem |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510973354.9A CN106911175A (en) | 2015-12-23 | 2015-12-23 | A kind of quick-detachable DC charging system of tandem |
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| CN106911175A true CN106911175A (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510973354.9A Pending CN106911175A (en) | 2015-12-23 | 2015-12-23 | A kind of quick-detachable DC charging system of tandem |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107968467A (en) * | 2018-01-08 | 2018-04-27 | 深圳市安和威电力科技股份有限公司 | A kind of adaptive inductive charging collection of convergent current type |
| CN109980913A (en) * | 2017-12-27 | 2019-07-05 | 中兴通讯股份有限公司 | Switching Power Supply, voltage output method |
| CN111277164A (en) * | 2020-03-14 | 2020-06-12 | 宁波锦浪新能源科技股份有限公司 | Split type photovoltaic inverter system who steps up and inverter circuit |
-
2015
- 2015-12-23 CN CN201510973354.9A patent/CN106911175A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980913A (en) * | 2017-12-27 | 2019-07-05 | 中兴通讯股份有限公司 | Switching Power Supply, voltage output method |
| CN109980913B (en) * | 2017-12-27 | 2021-11-02 | 中兴通讯股份有限公司 | Switching power supply and voltage output method |
| CN107968467A (en) * | 2018-01-08 | 2018-04-27 | 深圳市安和威电力科技股份有限公司 | A kind of adaptive inductive charging collection of convergent current type |
| CN111277164A (en) * | 2020-03-14 | 2020-06-12 | 宁波锦浪新能源科技股份有限公司 | Split type photovoltaic inverter system who steps up and inverter circuit |
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Application publication date: 20170630 |